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Campaign rallies

A child runs between political signs before the start of a campaign rally with Democratic incumbent Maryland Gov. Martin O'Malley and former President Bill Clinton, Oct. 21, in Baltimore. Rob Carr/AP

Amy Rozak, of Paulsbo, Wash., shows off her earrings, which feature the faces of President Barack Obama and Sen. Patty Murray (D) of Washington, as she waits in line, on Oct. 21, in Seattle outside Hec Edmundson Pavilion on the University of Washington campus in Seattle, where a rally with Obama and Murray was held later in the day. Ted S. Warren/AP

Former President Bill Clinton shakes hands with the crowd after speaking at campaign rally for incumbent Democratic Maryland Gov. Martin O'Malley, on Oct. 21, in Baltimore. Clinton, out of the Oval Office for nearly a decade and once considered a political liability, is campaigning for Democratic candidates at a pace no one can match, drawing big crowds and going to states that President Barack Obama avoids. Rob Carr/AP

President Obama and Sen. Patty Murray (D) of Washington take the stage at a campaign rally in Seattle, on Oct. 21. Obama is on a four-day, five-state swing to support Democrats in the upcoming election. Kevin Lamarque/Reuters

Linde Knighton, of Seattle, indicates her displeasure with all political candidates as she joins other demonstrators, Oct. 21, in Seattle, outside Hec Edmundson Pavilion on the University of Washington campus in Seattle, where a rally with President Barack Obama and Sen. Patty Murray (D) of Washington, was held later in the day. Ted S. Warren/AP

Tea Party supporters bow the heads during a prayer at a rally on Oct. 21, in San Diego. Lenny Ignelzi/AP

Members of the Olympia Washington Tea Party demonstrate on Oct. 21, in Seattle, outside Hec Edmundson Pavilion on the University of Washington campus in Seattle, where a rally with President Obama and Sen. Patty Murray (D) of Washington, was held later in the day. Ted S. Warren/AP

In this Oct. 18, photo, former President Bill Clinton, touches his head as he campaigns for Sen. Michael Bennet (D) of Colo., at a rally in Denver. Ed Andrieski/AP

Gus Mansour, of Lynnwood, Wash., attaches a sign he brought with him to a rally held by President Obama and Sen. Patty Murray (D) of Wash., to a barricade outside of Hec Edmundson Pavilion on the University of Washington campus, on Oct. 21, in Seattle. Mansour was told he could not bring the sign inside with him to the rally, so he left it on the barricade. Ted S. Warren/AP

Senator Harry Reid speaks during a support rally for the Democratic Senate Majority Leader at the University of Nevada, Reno campus in Reno, Nev., on Oct. 20. Scott Sady/AP

Newt Gingrich speaks during an American Solutions rally on Oct. 21, in Las Vegas. Isaac Brekken/AP

In this Oct. 20 photo, Florida Democratic senate candidate Rep. Kendrick Meek (D) of Fla. (l.) listens to former President Bill Clinton address supporters during a campaign rally for Meek at the University of Central Florida in Orlando, Fla. John Raoux/AP

Senate write-in candidate Sen. Lisa Murkowski (R) of Alaska listens from the crowd as others speak before her introduction at a campaign rally at the Fairbanks, Alaska, Curling Club on Oct. 21. Eric Engman/Fairbanks Daily News-Miner/AP

Former President Bill Clinton, at podium, delivers remarks during a campaign rally for Maryland incumbent Democratic Gov. Martin O'Malley during a campaign rally, on Oct. 21, in Baltimore. Rob Carr/AP

A boy waits for President Obama to speak at a campaign rally for Democratic Senator Barbara Boxer in Los Angeles, California, on Oct. 22. Obama is on a four-day, five-state swing to support Democrats in the upcoming election. Lucy Nicholson/Reuters

Tea Party supporter Rod VanOrden, of San Diego, stands during the Pledge of Allegiance at a rally on Oct. 21, in San Diego. Lenny Ignelzi/AP